Triangle abc is rotated 100° counterclockwise about point p to create δa′b′c′. what is m∠c′a′b′?

Anyone know? is appreciated! will mark brainliest if correct!

Triangle xyz, with vertices x(-2, 0), y(-2, -1), and z(-5, -2), undergoes a transformation to form triangle x? y? z? , with vertices x? (4, -2), y? (4, -3), and z? (1, -4). the type of transformation that triangle xyz undergoes is a . triangle x? y? z? then undergoes a transformation to form triangle x? y? z? , with vertices x? (4, 2), y? (4, 3), and z? (1, 4). the type of transformation that triangle x? y? z? undergoes is a .

Arational number that is equivalent to -20/4?